Examples of StructureData

ucar.ma2.StructureData
A container for a Structure's data. Is normally contained within an ArrayStructure, which is an Array of StructureData. This is the abstract supertype for all implementations.
```
 for (Iterator iter = sdata.getMembers().iterator(); iter.hasNext(); ) { StructureMembers.Member m = (StructureMembers.Member) iter.next(); Array sdataArray = sdata.getArray(m); ... } 
```
General ways to access data in an StructureData are:
```
 Array getArray(Member m) 
```
```
 Array getArray(String memberName) 
```
The following will return an object of type Byte, Char, Double, Float, Int, Long, Short, String, or Structure, depending upon the member type:
```
 Object getScalarObject( Member m) 
```
A number of convenience routines may be able to avoid extra Object creation, and so are recommended for efficiency. These require that you know the data types of the member data, but they are the most efficent:
```
 getScalarXXX(int recnum, Member m) getJavaArrayXXX(int recnum, Member m) 
```
where XXX is Byte, Char, Double, Float, Int, Long, Short, or String. For members that are themselves Structures, the equivilent is:
```
 StructureData getScalarStructure(int recnum, Member m) ArrayStructure getArrayStructure(int recnum, Member m) 
```
These will return any compatible type as a double or float, but may have extra overhead when the types dont match:
```
 convertScalarXXX(int recnum, Member m) convertJavaArrayXXX(int recnum, Member m) 
```
where XXX is Double or Float @author caron @see ArrayStructure

Examples of ucar.ma2.StructureData

    ArrayStructure as = (ArrayStructure) dodsFile.readWithCE(outerSequence, CE);


    /* unwrap the outer structure
    StructureMembers outerMembers = as.getStructureMembers();
    StructureMembers.Member outerMember = outerMembers.findMember(outerSequence.getShortName()); */
    StructureData outerStructure = as.getStructureData(0); 


    // get at the inner sequence
    ArrayStructure asInner = (ArrayStructure) outerStructure.getArray(innerSequence.getShortName());
    StructureMembers innerMembers = asInner.getStructureMembers();
    StructureMembers.Member timeMember = innerMembers.findMember(timeVar.getShortName());


    int n = (int) asInner.getSize();
    ArrayList stationData = new ArrayList(n);
    for (int i=0; i<n; i++) {
      StructureData sdata = asInner.getStructureData(i);
      double obsTime = sdata.convertScalarDouble(timeMember);
      stationData.add( new SeqStationObs(s, obsTime, sdata));
    }
    return stationData;
  }

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Examples of ucar.ma2.StructureData

      this.recno = recno;
      this.sdata = sdata;


      double lat = sdata.convertScalarDouble(latMember);
      double lon = sdata.convertScalarDouble(lonMember);
      StructureData inner = sdata.getScalarStructure(innerMember);


      double alt = 0.0;


      if (isProfile) {
        obsTime = sdata.convertScalarDouble(timeMember);
        alt = inner.convertScalarDouble(altMember);
      } else {
        obsTime = inner.convertScalarDouble(timeMember);
        alt = sdata.convertScalarDouble(altMember);
      }


      nomTime = obsTime;
      location = new ucar.unidata.geoloc.EarthLocationImpl( lat, lon, alt);

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Examples of ucar.ma2.StructureData


  public void utestNestedTable() throws IOException, InvalidRangeException {
    String filename = TestAll.cdmLocalTestDataDir + "dataset/nestedTable.bufr";
    NetcdfFile ncfile = ucar.nc2.dataset.NetcdfDataset.openFile(filename, null);
    Structure outer = (Structure) ncfile.findVariable(BufrIosp.obsRecord);
    StructureData data = outer.readStructure(0);
    //NCdumpW.printStructureData( new PrintWriter(System.out), data);


    assert data.getScalarShort("Latitude") == 32767;


    ArrayStructure as = data.getArrayStructure("struct1");
    assert as != null;
    assert as.getScalarShort(0, as.findMember("Wind_speed")) == 61;


    ncfile.close();
  }

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Examples of ucar.ma2.StructureData


  public void utestNestedTableEnhanced() throws IOException, InvalidRangeException {
    String filename = TestAll.cdmLocalTestDataDir + "dataset/nestedTable.bufr";
    NetcdfDataset ncd = ucar.nc2.dataset.NetcdfDataset.openDataset(filename);
    Structure outer = (Structure) ncd.findVariable(BufrIosp.obsRecord);
    StructureData data = outer.readStructure(0);
    //NCdumpW.printStructureData( new PrintWriter(System.out), data);


    assert Double.isNaN( data.getScalarFloat("Latitude"));


    ArrayStructure as = data.getArrayStructure("struct1");
    assert as != null;
    assert TestAll.closeEnough(as.getScalarFloat(0, as.findMember("Wind_speed")),6.1);


    ncd.close();
  }

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Examples of ucar.ma2.StructureData

      record = new StructurePseudo(ncfile, null, "precord", d);
      System.out.println("   use psuedo record");
    }
    StructureDataIterator iter = record.getStructureIterator();
    while (iter.hasNext()) {
      StructureData sd = iter.next();
      if (first) {
        System.out.println("   record size = " + sd.getStructureMembers().getStructureSize() + " " +
                "   nvars = " + sd.getStructureMembers().getMembers().size());
      }
      first = false;


    }
    double took = (System.currentTimeMillis() - start) * .001;

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Examples of ucar.ma2.StructureData

    double count = 0;
    long start = System.currentTimeMillis();
    DataIterator iter = tob.getDataIterator(0);
    while (iter.hasNext()) {
      PointObsDatatype pobs = (PointObsDatatype) iter.nextData();
      StructureData sdata = pobs.getData();
      count += pobs.getObservationTime();
    }
    double took = (System.currentTimeMillis() - start) * .001;
    System.out.println(" readIterator took=" + took + " secs " + count);

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Examples of ucar.ma2.StructureData

    try {
      stationHelper = new StationHelper();


      StructureDataIterator siter = ft.getStationDataIterator(-1);
      while (siter.hasNext()) {
        StructureData stationData = siter.next();
        Station s = makeStation(stationData, siter.getCurrentRecno());
        if (s != null)
          stationHelper.addStation( s);
      }
    } catch (IOException ioe) {

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Examples of ucar.ma2.StructureData

    CFPointObWriter writer = new CFPointObWriter(out, pobsDataset.getGlobalAttributes(), altUnits, nvars, -1);


    DataIterator iter = pobsDataset.getDataIterator(1000 * 1000);
    while (iter.hasNext()) {
      PointObsDatatype pobsData = (PointObsDatatype) iter.nextData();
      StructureData sdata = pobsData.getData();


      int dcount = 0;
      int scount = 0;
      for (PointObVar v : nvars) {
        if (v.getDataType().isNumeric()) {
          Array data = sdata.getArray(v.getName());
          data.resetLocalIterator();
          if (data.hasNext())
            dvals[dcount++] = data.nextDouble();


        } else if (v.getDataType().isString()) {
          ArrayChar data = (ArrayChar) sdata.getArray(v.getName());
          svals[scount++] = data.getString();
        }
      }


      ucar.unidata.geoloc.EarthLocation loc = pobsData.getLocation();

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Examples of ucar.ma2.StructureData


    int count = 0;
    pointFeatureCollection.resetIteration();
    while (pointFeatureCollection.hasNext()) {
      PointFeature pointFeature = (PointFeature) pointFeatureCollection.next();
      StructureData data = pointFeature.getData();
      if (count == 0) {
        EarthLocation loc = pointFeature.getLocation(); // LOOK we dont know this until we see the obs
        String altUnits = Double.isNaN(loc.getAltitude()) ? null : "meters"; // LOOK units may be wrong
        writer = new WriterCFPointDataset(out, pfDataset.getGlobalAttributes(), altUnits);
        writer.writeHeader(pfDataset.getDataVariables(), -1);

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Examples of ucar.ma2.StructureData

    this.linkVarName = linkVarName;
  }


  @Override
  public StructureData next() throws IOException {
    StructureData sdata;
    currRecno = nextRecno;
    try {
      sdata = s.readStructure( currRecno);
    } catch (ucar.ma2.InvalidRangeException e) {
      log.error("StructureDataLinkedIterator.nextStructureData recno=" + currRecno, e);
      throw new IOException(e.getMessage());
    }


    if (numRecords > 0) { // contiguous case
      nextRecno++;
      if (nextRecno >= firstRecord + numRecords)
        nextRecno = -1;


    } else {
      nextRecno = sdata.getScalarInt(linkVarName);
    }


    return sdata;
  }

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